Question 1: Wind is defined as
Number of coils per traverse
Number of coils in double traverse
Number of grooves in the drum
Winding speed in m/min
Question 2: A 2.5 crossing drum means there are
2.5 turns in a double traverse
5 turns in a double traverse
5 turns in a single traverse
None of the above
Question 3: In drum winding package density is independent of
Yarn tension
Yarn strength
Applied package/drum pressure
Angle of wind
Question 4: Surface speed of a cone in relation to surface speed of winding drum is
Equal at all points
Higher at all points
Lower at all points
Higher at some points and lower at other points
Question 5: Hardness of a cone can be changed by changing the
Traverse
Wind per double traverse
Wind angle
Conicity of the package
Question 6: During production of a cone on a surface driven winder, the point of drive is
At the centre of the package
At the package base
Near the package nose
Near the package base
Question 7: In a drum or surface driven winding machine, with an increase in package diameter
The winding speed would increase
The package rpm would go up
The coil angle would decrease
The number of coils per double traverse would fall steadily
Question 8: In case of surface driven winding package, as the winding proceeds , angle of wind
Increases
Decreases
Remains constant
First increases and then decreases
Question 9: Pattern formation during drum driven winding occurs due to
Low traverse speed
High surface speed
Low RPM of the drum
Ratio of traverse speed to RPM being a whole number
Question 10: In spindle driven winder with constant winding speed the following thing changes with
package diameter
(A) Traverse ratio
(B) Package rpm
(C) Angle of wind
(D) Package surface speed
A, C
B, C
C, D
A, D
Question 1: In step precision winding (Digicone winding)
Traverse speed is constant
Traverse speed increases with time
Traverse speed reduces continuously with time
Traverse speed reduces and then increases in steps.
Question 2: The doffing period in minutes of a 1.5 kg package being wound at a winding speed of
1000 m/min with 90% efficiency from 12 tex yarn would be
131.7
138.8
143.2
147.5
Question 3: Angle of wind in a cross wound package is in the range of
50-200
150-200
300-500
700-900
Question 4: In winding optimum tension for 30 tex cotton yarn will be approximately
5g
10 g
30 g
60 g
Question 5: The change in twist of yarn during over end unwinding is
More in case of smaller diameter package
More in case of larger diameter package
Not dependent on package diameter
None of the above
Question 6: A precision winder has to wind 4 kg of yarn of 40 tex. If the machine winds at 800
m/min, without any interruption, the time (min) taken for winding would be
125
100
25
12.5
Question 7: If the efficiency of the above machine is 91%, additional time(min) required to do the
same job is approximately
10
12
15
25
Question 8: The following data refers to a cone winding process:
Package diameter=20 cm
Package height=25 cm
Drum diameter=8 cm
Scroll of the drum=2.5
Winding speed=1000 m/min
i: The number of coils on the surface of the package is
0.5
1.0
1.5
2.0
ii: The rpm of the drum is approximately
3000
3400
3700
4000
Question 10: In a winding operation if E is clearing efficiency, K is knot factor and n is number of
objectionable faults present in the yarn, then total number of clearer breaks occurring on the
machine would be
EKn
EK/n
En/K
En2K
Question 11: Rank the four splicers in ascending order and justify your answer
Splicer RSS (%) Splice breaking ratio Clearing efficiency Knot factor
(%)
A 90 50 92 1.1
B 85 55 90 1.2
C 90 45 92 1.0
D 85 60 88 1.2
C-D-B-A
C-A-B-D
A-D-B-C
A-C-B-D
Question 1: The magazine creel is employed for
Long run of the same warp
Quick change over from one warp to another
Saving space
Saving energy.
Question 2: The headstock is movable in
Truck creel
Duplicated creel
Magazine creel
Swiveling creel
Question 3: Transfer failure is relevant in case of
Truck creel
Duplicated creel
Magazine creel
Swiveling creel
Question 4: If the creel capacity is 680 then the maximum number of ends on the warper’s beam in
case of magazine creel would be
340
680
1360
2720
Question 5: With one break per million meters of yarn wound, a beam warper running from a 600
end creel of 15 tex yarn would stop every
1500 m
1567 m
1600 m
1667 m
Question 6: Sectional warping is a
Two step process and less popular than direct warping
Single step process and used for customized production
Two step process and beaming speed is more than direct warping
Two step process and used for customized production
Question 7: Sectional warping is considered more practical than beam warping
For executing large orders
For small lots
For spun yarns
When sizing is considered necessary
Question 8: The angle of the conical portion of the drum in sectional warping is around
00-40
60-200
300-450
450-600
Question 9: For increased taper angle on a sectional warping machine, one could require to
Increase the traverse speed
Decrease the traverse speed
Increase the warping speed
Decrease the warping speed
Question 10: Expandable reeds are used to
Expand the width of the warping machine
Control the warping tension
Ensure desired spacing between two ends
To repair warp breakage during warping
Question 1: Size is primarily applied on warp yarns to
Increase yarn uniformity
Increase yarn elongation
Increase yarn modulus
Provide protective coating against abrasion
Question 2: Sizing of warp yarn
Adds value to warp yarn
Improves weavability
Increases the strength of finished fabric
Increases breaking extension of the sized yarn
Question 3: Excessive size makes the warp yarn
Stiffer
More extensible
More hairy
Better from the point of weaving
Question 4: The wet pick up in sizing for an add-on of 18 % and wet liquor concentration of 12% will
be
1.5
0.67
1.25
Question 5: An increase in size add-on
Consistently increases weavability
Consistently decreases weavability
Increases weavability up to a certain limit then decreases
Does not change weavability
Question 6: Size add-on can increase with increase in
Size paste viscosity
Nip pressure
Cylinder temperature
Yarn stretch
Question 7: With the increase in the sizing machine speed, size add-on would
Increase
Decrease
Remain constant
Increase initially and then decrease
Question 8: Size pick-up is not influenced by
Machine speed
Squeeze pressure
Size paste concentration
Drying cylinder temperature
Question 9: In a sizing machine, 100 m length of warp sheet was processed. The warp was
stretched by 3%, 2% and 1% at unwinding zone, wet zone and drying zone respectively. The length
of warp sheet on weaver’s beam will be
106.00 m
106.11 m
103.11 m
100.96 m
Question 10: Two dip and two nip would be preferred for
Multifilament yarn
Monofilament yarns
Staple fibre yarns
Hosiery yarns
Question 1: High pressure squeezing in conjunction with high paste concentration is aimed at
Increasing the dry pick-up (add on)
Laying the hairs more closely to the body of the yarn
Lowering energy consumption
Improving the yarn strength
Question 2: For attaining higher wet pick up in sizing
Hardness of the top squeeze roller should be increased
Both the squeeze roller should be metallic
Top roller should be metallic
Hardness of the top squeeze roller should be decreased
Question 3: With respect to normal starch, thin boiling starch can
Show same viscosity at lower concentration
Show same viscosity at higher concentration
Require higher amount of water evaporation in drying
Show similar concentration-viscosity relationship
Question 4: 100 kg of bone dry warp sized to a dry pick up (add on) of 8% and dried to an overall
moisture content of 10% would finally weigh
118 kg
118.8 kg
119 kg
120 kg
Question 5: Split drying system is employed on sizing machines for drying
Very wide warp sheet
Warp sheet with very high wet pick up
Very dense warp sheet
Multi coloured warp sheet
Question 6: The temperature range of drying cylinders of a multi cylinder machine, sizing cotton
yarns is
750-800 C
1400-1500 C
1800-2000 C
2000-2500 C
Question 7: Drying cylinders of sizing is coated with
Chromium
Synthetic rubber
PTFE
Starch
Question 8: Convection drying of sized warp sheet results
More uniform drying but less energy efficiency than cylinder drying
Less uniform drying but less energy efficiency than cylinder drying
More uniform drying but more energy efficiency than cylinder drying
Less uniform drying but more energy efficiency than cylinder drying
Question 9: Quality of sized yarn is not evaluated by
Cohesive power
Loss in breaking elongation
Abrasion resisatnce
Uster unevenness value
Question 10: Pre wetting the warp yarn with water before sizing will
Increase the size add-on %
Decrease the size add-on %
Increase wet pick up
Decrease loom efficiency
